An insurance company has the following historical period data available concerning registered insurance premiums (in millions of euros) for annual insurance policies:

Calendar year	Registered insurance premiums
2015	500
2016	550
2017	600
2018	650

The insurance company has imposed the following changes in the rates of all contracts:

01/07/2015: +2% ,

01/07/2016: - 5% 01/07/2017: 4%

01/07/2018: + 9% Calculate the adjusted total risk exposure using the parallel method based on the adjusted registered premiums.